September 11 (National Geographic Kids Readers, Level 3)

Libby Romero was a journalist and a teacher before becoming an author. Her books include the biography Ibn al-Haytham: The Man Who Discovered How We See, as well as teacher guides, interactive whiteboards, and a variety of other materials, including National Geographic's Explorer magazines and the Smithsonian Institution's TweenTribune. Libby is the author of DK Life Stories: Helen Keller and DK Life Stories: Jane Goodall.

Charlotte Ager is the illustrator on all the Life Stories titles. Her work has appeared in The New York Times as well as in Season and Here magazines. She has also been featured on the Urban Outfitters blog. Charlotte lives in London.

Charlotte Ager is the illustrator on all the Life Stories titles. Her work has appeared in The New York Times as well as in Season and Here magazines. She has also been featured on the Urban Outfitters blog. Charlotte lives in London. View titles by Libby Romero

National Geographic Kids believes in the awesome power of science, exploration, and storytelling, and our children’s books bring the best of this incredible world directly to readers' hands. Fun, colorful, and jam-packed with cool info, Nat Geo Kids books are also fact-checked, expert-reviewed, and 100 percent human-made—and from the only kids’ brand with roots in a world-class scientific organization. From leveled readers to photo-rich almanacs and from baby animals to dangerous dinosaurs, Nat Geo Kids has a book that will spark curiosity and ignite wonder in every young explorer! View titles by National Geographic Kids